We have just received an email from John Diamond, the lead developer of the open-source Alien Arena
game, that the Alien Arena 2011 release will be coming this Fall (in North American terms) and we have been told some of the features to be found in this new version.
Alien Arena 2010
came in May and being improved in this first person shooter since that point is rag-doll physics and new in-game content, including new maps and characters. The rag-doll physics is being powered by the Open Dynamics Engine.
When we have more details on the imminent release of Alien Arena 2011 we will pass them along.